I strongly suggest putting it into Beta 1 unless you want the pushback from people who haven't followed these forums and wonder why it isn't there after a year and a half since WoM.

It's very unlikely. I thnk more people would prefer to see it this month than to wait until that feature gets through the queue which could be an extra month.  

It's a judgment call of course and it's up to Derek but that's my 2 cents.

Its a bit more to do actually:

It would be incomplete just to see it if a army has a path. It also changes the controls. If selected an army the 1st click (on a tile which is not the destination) will show the new rout. Second click on the tile will execute the walk order. Otherwise the army will show the path after walking the first round. This would be awkward.

And just to scare a little more. What to do if the terrain is changed. For example a new valley is created by a spell. Recalculate all routs? Only those of the AI? What if the way is blocked by an enemy or friend? Po-pup with attack order. But after walking to the enemy or before walking? I personalty do like to have the choice. Automatics will "always" do what you do not want.

Addressing all this it'll be more the two to x day feature.

Ok Vallu751 you are right, most designers favor less clicks over more. And it would be great to see the path on mouse over, but this can be cpu expensive. Imagine you have selected a unit, move do a distant location (searching for another unit or something else) and all the paths will be calculated while hovering over the terrain. Maybe this is too much cpu time and it has some art/style issues as well. If i could select I'll still go with the "two click" solution. The metaphor is similar to desktop environments and decently fast as well. And it has less probabilities of "mis clicking". "Whoops slided down the mouse button -> Commence deadly move!"

My intention was to show that only a path view will not do. Its a control element and thats what we do all the time during playing and therefor it must be done right.

Disagree. It's what makes the difference between good and bad look n' feel.

Googled for a youtube video that demonstrates how Civ 5 handles the path showing. When right mouse button (if I recall correctly) is pressed down, path to target is shown.

Check the video at about 1:50 for a demonstration http://www.youtube.com/watch?v=NuYutWRstI4

I don't think I've ever made a mis-click. If two clicks were required, I probably would have made tens of thousands of extra clicks by now...